Adjustable cutter for envelop-blanks.



No. 863,588.. PATENTED AUG. 20, 1907. 0, E. GATHER.

ADJUSTABLE CUTTER FOR ENVE-LOP BLANKS. APPLICATION rum) EAR. 1a, 1907.

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UNITED STATES PATENT OFFICE.

CHARLES E. CATHER, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO UNITED STATES ENVELOPE COMPANY, OF WORCESTER, MASSACHUSETTS, A CORPORATION OF MAINE.

ADJUSTABLE CUTTER FOR ENVELOP-IBLANKS.

N 0. 863,588. Specification of Letters Patent. Patented Aug. 20, 1907.

Application filed March 18,1907. serial No. 362,315.

To all whom it may concern: A stack of paper of the rectangular shape shown by Be it known that I, CHARLES E. OATIIER, a citizen of the broken lines a is placed upon a cutting table and the United States, residing as Worcester, in the county the cutter is placed upon it in position to cut the seal of Worcester and Commonwealth of Massachusetts, flap 1; by that portion of the cutter l lying between the have invented a new and useful Improvement in Adangles 17 and 18. The portions of the cutter 1 lying justable Cutters for Envelop-Blanks, of which the folon the outside of the angles 17 and 18 cut one edge of lowing is a specification, accompanied by drawings each side flap c, c, the other edge of which is cut by the forming a part of the same, in whichportions 19 and 20 of the angular cutters 2 and 3. The Figure 1 is a top view of a cutter embodying my intwo sides of the back flap d are cut by the portions 21 vention. Fig. 2 is an end view of the same. and 22, of the cutters 2 and 3. I

Similar-reference letters and figures refer to similar The envelop is formed by folding the side flaps on parts in the different views. the broken lines 6, e, the back flap on the broken line My invention relates to the improvements in the f and the seal on the broken line dies or cutters used to form envelop blanks, whereby The adjustment of my improved cutter is made as I obtain a single cutter which forms the envolop blank iollowsz-To change the distance between the seal and at one operation, and which is also adjustable to differback flaps the angular cutters 2 and 3 are adjusted on ent sizes or descriptions of envelops, and comprises the the bolts 4 toward or away from the cutter 1', to change improvements herein described and pointed out in the the distance between the side l'laps the cutter 3 is adannexed claims. justed toward or away from the cutter 2 and a cutter of Referring to the accompanying drawings 1 is the different length is substituted for cutter 1. In this cutter, by means of which the seal fiap and a portion way the same die may be used for different sizes and of the end flap of the envelop is cut, and the angular descriptions of envelops with the necessity only of cutters 2 and 3 form the reentrant angles or corners at changing cutter 1. the body of the envelop between the end and back I claim,

flaps and also portions of the end and back flaps. The 1. A die for cutting envelop blanks. consisting of a cutcutters are formed of steel or other suitable material. f forming the Seal flap and Portions of the flaps The cutter 1 and the angular cutters 2 and 3 are pera pan of angular cutters for folmmg angles between f d the end and back flaps and portions of said end and back to lecelve sclew volts each of the bolts flaps, means for adjusting said pair of angular cutters tolng fixed collars 5, 5 against WhlCh the ends 6, 6 Of the ward or away from said seal flap cutter,.and means for adtt 1 are h ld b nuts '7 7 Th angular tt 2 justing said pair of angular cutters toward or away from and 3 are adjustably held on the bolts 4 by nuts 8, 8 i

d 9 9 T1 d 10 d 11 t a 1 A die for cutting envelop blanks, consisting of a cutan 1e opposi e en S an O 16 ilrn i tor for forming the seal flap and portions of the end flaps, cutters 2 and 3 are perforated t0 receive a screw bOlt 12, a pair of angular cutters for forming the angles between hi h i id d ith fix d 11 13 a ai t whi h the end and back flaps and portions of said end and back the end 10 of the Cutter 2 is held by a nut 14' The flaps, adjustable connections between the seal flap cutter and one end of each of said )air of an ular cutters. wherecutter 3 1s adpistably held in the bolt 12 by nuts 10 l D and away from said seal flap cutter, and an adjustable connec Th Paper f hi h th envelop bl k are m b tion between the other ends of said pair of angular cut- '1 1. "f Y ed rd formed 15 cut m y convement shape Wlth the sides teis, hereby said pan 0 cutteis may be ldJLlSt town or away from each other. 40 of the paper: deslgned to form the slde flaps arranged 3. A die for cutting envelop blanks, consisting of a cutto be intersected by the cutters l, 2 and 3 and the end mfor forming the seal flap and portions of the end flaps, designed to form the back flap arranged to be inter- P i gl' l f gutters 50ifirmingfthe gnglels beihlveep 116 end illl HICI EDS an DOF'lOllS O Sill CDC an )fic; sected by the cuttels 2 and flaps, screw bolts between the seal flap cutter and one end T e paper flOIn which the blank is to be Cut s S WIl of each of said pair of angular cutters, and a screw bolt in Fig. 1 by the blOken lines a, a, (1, l1 representing a between the other ends of said pair of angular cutters.

rectzngular shaped piece of sufficient length to form Dated the 15th day of gTf Es E CKTHER z t J I the seal and back flaps and of sufiicient width to form Witnesses the side flaps of an envelop blank when shaped by the nu s B. FOWLER, cutters 1, 2 and 3. Hnxnr WM. FOWLER.

by said pair of angular cutters may be adjusted toward or- 

